centos7将网卡名字改成eth样式

1、打开/etc/sysconfig/grub，
# vim /etc/sysconfig/grub
内容如下：
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="vconsole.keymap=us crashkernel=auto vconsole.font=latarcyrheb-sun16 rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

2、修改上面内容中的GRUB_CMDLINE_LINUX的值，增加net.ifnames=0 biosdevname=0
# vim /etc/sysconfig/grub
修改后的内容如下：

GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
GRUB_DISABLE_SUBMENU=true
GRUB_TERMINAL_OUTPUT="console"
GRUB_CMDLINE_LINUX="vconsole.keymap=us crashkernel=auto vconsole.font=latarcyrheb-sun16 net.ifnames=0 biosdevname=0 rhgb quiet"
GRUB_DISABLE_RECOVERY="true"

3、执行：grub2-mkconfig -o /boot/grub2/grub.cfg
然后，重启系统，网卡名字就变成eht0了